Printing Leap Years | Dataford Interview Questions

MORSE simulation timelines may need a list of calendar years that contain an extra day. Given an inclusive range of years, return every leap year in that range in ascending order.

A year is a leap year under the Gregorian calendar if it is divisible by 4, except for century years, which must also be divisible by 400. For example, 2000 is a leap year, while 1900 is not.

Formal Specification

Implement leap_years_since(start_year, end_year).

Input: Two integers, start_year and end_year, representing the inclusive range to inspect.
Output: A list of integers containing all leap years from start_year through end_year, in ascending order.

Constraints

1 <= start_year <= end_year <= 10^6
The range is inclusive
Return an empty list when no leap year exists

Function Signature

def leap_years_since(start_year, end_year):

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